Surgery Miscellaneous d35874cd Most common cause of hypersecreting pitutary tumor is? A Pitutary adenoma B Pitutary carcinoma C Autoimmune disease of pituitary D Transection of stalk High-Yield Explanation ANSWER: (A) Pitutary adenomaREF: Harrison's 18th ed chapter 339, 341Most common cause of hypersecreting pitutary tumors is pitutary adenoma